Table 3.

Predicted elapsed time between cannabis smoking and blood collection with plasma THC between 0.5 and 2.0 μg/L and THCCOOH ≥2.5 μg/L.

nAccuracy (cases within 95% CI), %Elapsed time overestimatedElapsed time underestimated
nMean (range) time, minnMean (range) time, min
Model I7780.51531 (3–50)0
Model II7677.601737 (5–87)
Models I and II176100.000